16728930 has 80 divisors (see below), whose sum is σ = 47393280. Its totient is φ = 4222368.

The previous prime is 16728917. The next prime is 16728941. The reversal of 16728930 is 3982761.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 14847 + ... + 15933.

It is an arithmetic number, because the mean of its divisors is an integer number (592416).

Almost surely, 2^16728930 is an apocalyptic number.

16728930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 16728930, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23696640).

16728930 is an abundant number, since it is smaller than the sum of its proper divisors (30664350).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16728930 is a wasteful number, since it uses less digits than its factorization.

16728930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1125 (or 1116 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 16728930 is about 4090.1014657341. The cubic root of 16728930 is about 255.7541687128.

The spelling of 16728930 in words is "sixteen million, seven hundred twenty-eight thousand, nine hundred thirty".